John haebis



(No Model.)

J. HARRIS.

REAPING MACHINE.

No. 252,764. Patented Jan. 24,1882.

"kin/asses.

UNITED STATES PATENT OFFICE.

JOHN HARRIS, OF BBANTFORD, ONTARIO, CANADA, ASSIGNOR TO A. HAR- RIS, SON & CO, (LIMITED,) OF SAMEPLAOE.

REAPlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 252,764, dated January 24, 1882,

Application filed September-9, 1881. (No model.)

To all whom it may concern Be it known that I, JOHN HARRIS, of the city of Brantford, in the county of Brant, in the Province of Ontario, Canada, manufacturer, have invented certain new and useful Improvements in Reaping-Machines, of which the following is a specification.

The principal object of the invention is to construct and arrange the rake-arms of a IO reaper in such a manner that they will operate independently of each other with the least possible friction upon their wearing parts; and it consists essentially in making the spindle upon which the rake-holder is hinged so that 5 its longitudinal axis will intersect the axis of the joint by which the arm is hinged to the crown-wheel; also, in similarly arranging the spindle upon which the friction-roller attached to the rake-holder is supported, so that the said friction-roller will at all points revolve freely while traversing the guiding-tracks on the rake-jack.

Figure 1 is a perspective view of my rakejack. Fig. 2 is a detail showing the relative 5 position of the rake spindle and frictionroller. Fig.3 is an enlarged detail of the rakearm and rake-holder. Fig. 4 is a cross-section through at ,showing notch in the arm for preventing the rake-holder revolving, while per- 3 mitting it to roll up sufficiently to clear the rake of the grain. Figs. 5 and 6 are details of the friction-roller. Fig. 7 is a detail of my improved automatic tripping device.

In the drawings, A is a rake-arm, hinged to the crown-wheel B upon the joint-bolt O. A-

center line passing through the extension of the arm A,forming the spindle to support the rake-holder D, would intersect the center of the joint-bolt C. The rake-holderD is provided 4 with a projectingarm, D,formed substantially as shown; and having a hub bored out to receive and support the friction-roller, as hereinafter explained.

E is a friction-roller, bored out to fit over the sleeve F. This sleeve is provided with an eccentric hub, which fits into the recess in the hub on the projecting arm D. The bolt G passes through the center of the sleeve F and secures the friction-roller E in position, as rep- 5 resented. A center line drawn through the bolt G, if extended, will pass through the center of the joint-bolt O, and also through the center of the main king-bolt, passing through the rake-jack. The center line of the rake-arm also, ifextende(l,\vill pass through theking-bolt referred to. By thus centering the rake-arm and friction-roller upon the joint-bolt and kingbolt as explained the wear on the frictionroller will always be even.

It will be noticed that I use no spring in connecting the rake-holder to the rake-arm, as it is not intended that the rake-holder should roll around the arm except sufficiently to clear itself from the grain at the point where it is withdrawn therefrom by the cam-track. A 5 notch, or, is made in the arm A to receive a projection, 1), formed on the rake-holder D. This projection will prevent the arm rolling on the rake-holderD, but at the same timethe notch is sufficiently wide to permit the rake- 7 holder to tilt up in order that the teeth may be clear of the grain when the rake is beingraised up either on the grain side or grain-delivery side of the reaper-table.

With the view of explaining the advantage of my invention,I shall proceed to explain its operation in connection with the guidingtrack.

As shown in Fig. 1', the rake-holder (marked D is being admitted through the gate as it passes from below the guiding-track H to the upper side of the track H, which latter carries it over the table when the rake is to be used only for reeling. While passing from below the track H to the upper side of the track P H the rake-holder is slightly canted by the grain, the notch a being, as I before said, sufficiently wide to permit of this motion, which allows the rakes to clear themselves of the grain as they reel it over the cutters. Owing 0 to the fact that the axis of the friction-roller E is on a center line with the center of the joint-bolt O, and that the center line of the rake-holder is directed to the same point, the friction-roller E will revolve quite as freely below the track H as it will when above the track H notwithstanding the difference of the angle to the center of the rake-jack. This fact insures a free movement of the frictionroller and prevents thesliding movement which would otherwise be caused when the angle of the rake-arm was altered. The rake-holder D is shown as it passes through the gate on the delivery side of the table after having passed over the table. At this point it ascends the drivingtrack, (not shown in the drawings,) gradually assuming the vertical position that the other arms are shown in. Owing to the centering of the friction-rollerand rakeholder, as described, the friction-roller will continue to revolve freely during its passage over this track.

In order th at the friction-roller may readily be adjusted to bear properly on the bottom of the guiding-tracks H, the sleeve F, upon which the friction-roller is supported, is provided, as I stated before, with an eccentric hub, which fitsinto the recess made in the hub of theprojecting arm 1). Thus by loosening the boltGr the sleeve may be adjusted around so as to throw the friction-roller nearer to or farther from the track without alteringits center line, which at all times will point to the center of the jointbolt 0, as shown in Fig. 3. ()n reference to Fig. 3 it will be noticed that the rake-holder D has two slots, I, made in it, through which the bolts J, which secure the rakes to the holder, pass. These bolts also pass through washers K through holes eccentrically made in them. The washers are held between the lugs L, cast on the rake-holderD. As the bolts J, which hold the rake to the holder, pass through holes eccentrieally placed in the washers K, the said bolts may be adjusted by turning the washers on their center, so that the rake may be raised at both ends simultaneously, or one end alone may be adjusted, as circumstances require.

As the present invention relates toimprovements made in rake-gear previously patented by me, it is not necessary to show all the parts or to explain how it operates in connection with the rest of the machine.

In Fig. 7 Ishow a bell-crank for tripping the gate. This device is designed so that the tripping can either be done automatically by means of pins M, placed in the crown-wheel B, or by means of the foot through a rod connected to the crank N. This movement is already in public use. It is therefore not necessary to ex-' plain its operation; but I may state that as formerly made the crank N was in one solid piece; consequently when the pins M were arranged in the crown-wheel B to trip the rake at certain points the movement is positive and the rake must necessarily be tripped as the pin passes the crank. This was found to be a disadvantage, as it sometimes occurred that it was not advisable to trip the rake at that particular point. In order therefore to have the advantage ot'an automatic trip, and at the same time be able to control it, I divide the crank N into two parts, N and N one of which, N is rigidly fastened to an arbor fastened to the crank N while the other, N, is pivoted to said arbor, the two beingpressed apart by the spring 0 between them. When the pin M comes in contact with the part or arm N the crank N is caused to revolve, drawing with it the rod which operates the gate. Should the driver find it not advisable to trip the gate at any particular point, he places his foot on the foot-lever which is connected to the arm N By holding this lever the crank N is prevented turning. The pins, when they come in contact with the crank-arm J. turn iton its own axis against the pressure of the spring sufficiently far to enable the pin to pass without affecting the crank-arn1 N, the spring 0 being pressed sufiiciently to allow the pin to pass without affecting the crank N By this arrangement all the advantages of an automatic trip are secured, while at the same time it iskept under the control of the driver.

\Vhat I claim as my invention is- 1. I11 a harvesting-machine having continuouslyrevolving reeling and raking mechanism, a rake-arm having a spindle upon which the rake-holder rotates, said arm made so that the axis of its spindle, if prolonged, would strike the axis of the joint-bolt connecting it to the crown-wheel, in combination with a friction-roller attached to the rake-holder and working upon a stud, the axis of which, if prolonged, would strike the axis of thejoint-bolt and also the axis of the crown-wheel, for the purpose of allowing the friction-rollers to track smoothly on its guide at all points in the revolution of the crown-wheel and in the rotation of the rake upon the spindle of the rake-arm, substantially as described.

2. A rake-arm hinged to the crown-wheel and carrying a rake-holder hinged thereon, the axis of the hinge, if prolonged, intersecting the axis of the joint-bolt connecting the rakearm to the crown-wheel, and the friction-roller supported on the rake-holder, its axis, if prolonged, also intersecting the pivot. of the rakearm, in combination with a gate hinged to the guiding-track at an opening in said track on the grain side of the machine, for the purpose of raising the rake-arm, rake-holder, and rake, after passing the cutters, to pass over the grain on the platform.

3. In combination with a rake-arm hinged to the crown-wheel, a rake-holder hinged thereon, said rake-holder having a downward and inward inclined projecting arm provided with a friction-roller centered on the axis of the joint-bolt, as described, and a projection adapted to engage with a notch in said arm to permit a slight movement of the rake-holder, so that when the teeth of the rake have passed the cutters and come in contact with the grain the rake-head is thrown into a slanting position, for the purpose of preventing the rakes, when reeling, from disturbing the grain on the platform when the rakes are raised to pass over the platform.

4. A rake-arm hinged to the crown-wheel and carryinga rake-holder hinged thereon, said rake-holder having a downward and inward inclined projecting arm provided with a frictionroller centered on the axis of thejoint-bolt, as described, in combination with a projecting flange secured to or cast upon the guidingtrack at a point just in front of the cutter-bar, for the purpose of keeping the rakes in a vertical position when reeling the grain to the cutters.

5. A rake-arm hinged to the crown-wheel and carrying a rake-holder hinged thereon, said rake-holder having a downward and iiiward inclined projecting arm provided with a friction-roller centered on the axis of the jointbolt, as described, in combination with a gate hinged to the guiding-track at an opening on the grain side of the machine, which, when closed, causes the rakes to keep a vertical position and sweep the grain from the platform.

6. A rake-arm hinged to the crown-wheel and carryinga rake-holder hinged thereon, said rake-holder having a downward and inward inclined projecting arm provided with a frictionroller centered on the axis of the joint-bolt, as described, in combination with a movable track or throat at the delivery side of the platform, for the purpose of controlling the delivery of the sheaf in different conditions of crop.

7. A rake-arm hinged to the crown-wheel and carrying arake-holderhinged thereon, said rake-holder having adownward and inwardin clined projecting arm provided with a frictionroller centered on the axis of the joint-bolt, as described, in combination with eccentric washers and stop in the rake-holder, for the purpose of adjusting the rakes at either end to the platform.

8. A rake-arm hinged to the crown -wheel and carrying a rake-holder hinged thereon, having a downward and inward inclined projecting arm provided with a friction-roller centered on the axis of the joint-bolt, as described, in combination with the cam-stud on which said roller revolves, for the purposeof adjusting the roller to the guiding-track.

9. The lever N, consisting of two parts, N N", and the spring 0 between said parts. in combination with a crown-wheel having suitable projections ft r operating said lever and connections, substantially as described, between the lever and the gate in the guiding-track, as set forth.

10. In a harvesting-machine having continuously-revolving reelingand raking mechanism, a rake-arm,the axis of its spindle, it" prolonged, intersecting the axis of the-joint-bolt connecting it to the crown-wheel, and a rake-holder hinged on said arm, in combination with afric tion-roller attached to the rake-holder and working upon a stud, the center line of which, if prolonged, would intersect the axis of the joint-bolt, and also the axis of the crownwheel, for the purpose of allowing the friction-roller to track smoothly on its guide at all points in the revolution of the crown-wheel.

JOHN HARRIS.

Witnesses:

W. G. Cox, J AMES GRANT. 

